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Gene therapy reprograms scar tissue in damaged hearts. |
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The GMT genes alone reduced the amount of scar tissue by half compared to animals that did not receive the genes, and there were more heart muscle cells in the animals that were treated with GMT. The hearts of animals that received GMT alone also worked better as defined by ejection fraction than those who had not received genes. (Ejection fraction refers to the percentage of blood that is pumped out of a filled ventricle or pumping chamber of the heart.) The hearts of the animals that had received both the GMT and the VEGF gene transfers had an ejection fraction four times greater than that of the animals that had received only the GMT transfer.
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Elevated levels of C-reactive protein associated with depression. |
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Eurekalert: Increasing CRP levels were associated with increasing risk for psychological distress and depression in analyses. For self-reported antidepressant use, the odds ratio was 1.38 for CRP levels of 1.01 to 3 mg/L, 2.02 for 3.01 to 10 mg/L, and 2.7 for greater than 10 mg/L compared with 0.01 to 1 mg/L. For prescription of antidepressants, the corresponding odds ratios were 1.08, 1.47 and 1.77, respectively; for hospitalization with depression they were 1.30, 1.84 and 2.27 respectively. Other analyses suggest that increasing CRP levels also were associated with increasing risk for hospitalization with depression, according to the study results.
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Blood transfusion associated with increased risk of heart attack. |
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EurekAlert: "In conclusion, this meta-analysis provides evidence that rates of all-cause mortality and subsequent myocardial infarction are significantly higher in patients with acute myocardial infarction receiving blood transfusion. Additional outcomes data are needed from randomized clinical trials that investigate important outcomes with adequate sample size and with low risk for bias," the authors conclude.
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Gut bacteria may protect against atherosclerosis by making carotenoids. |
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EurekAlert: The researchers compared a group of stroke patients with a group of healthy subjects and found major differences in their gut microbiota. In particular, they showed that genes required for the production of carotenoids were more frequently found in gut microbiota from healthy subjects. The healthy subjects also had significantly higher levels of a certain carotenoid in the blood than the stroke survivors.
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Anti-HIV drug protects leukoctyes against Staph. aureus infection. |
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EurekAlert: That same receptor has now been found to be critical to the ability of certain strains of Staph to specifically target and kill cells with CCR5, which orchestrate an immune response against the bacteria. The scientists discovered that one of the toxins the bacterium releases, called LukED, latches on to CCR5 and subsequently punches holes through the membrane of immune cells, causing them to rapidly die. The LukED toxin belongs to a family of proteins called leukotoxins, encoded and produced by Staph to fight off the immune system's defenses.
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